<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片试图区域 -->
    <el-card>
      <!-- 栅格化布局 -->
      <!--搜索输入区域,添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList">
            </el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">
            添加用户
          </el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-row>
        <el-table :data="userlist" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="姓名" prop="username"></el-table-column>
          <el-table-column label="邮箱" prop="email"></el-table-column>
          <el-table-column label="电话" prop="mobile"></el-table-column>
          <el-table-column label="角色" prop="role_name"></el-table-column>
          <el-table-column label="状态">
            <!-- 作用域插槽 -->
            <template slot-scope="scope">
              <!-- {{ scope.row }} -->
              <el-switch
                v-model="scope.row.mg_state"
                @change="userStateChanged(scope.row)"
              >
              </el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
              <!-- 修改按钮 -->
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              >
              </el-button>
              <!-- 删除按钮 -->
              <el-button
                type="danger"
                icon="el-icon-delete "
                size="mini"
                @click="removeUserByid(scope.row.id)"
              >
              </el-button>
              <!-- 分配角色按钮 -->
              <el-tooltip
                class="item"
                effect="dark"
                content="分配角色"
                placement="top"
                :enterable="false"
              >
                <el-button
                  type="warning"
                  icon="el-icon-setting"
                  size="mini"
                  @click="setRole(scope.row)"
                >
                </el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
        >
        </el-pagination>
      </el-row>
    </el-card>

    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 表单区域 -->
      <el-form
        ref="addFormRef"
        :model="addForm"
        :rules="addFormRules"
        label-width="70px"
      >
        <!-- 用户名 -->
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false"> 取 消 </el-button>
        <el-button type="primary" @click="addUser"> 确 定 </el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <span>
        <el-form
          :model="editFrom"
          :rules="editFromRules"
          ref="editFromRef"
          label-width="70px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editFrom.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editFrom.email"></el-input>
          </el-form-item>
          <el-form-item label="手机号" prop="mobile">
            <el-input v-model="editFrom.mobile"></el-input>
          </el-form-item>
        </el-form>
      </span>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false"> 取 消 </el-button>
        <el-button type="primary" @click="editUserInfo"> 确 定 </el-button>
      </span>
    </el-dialog>

    <!-- 分配权限的对话框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogColsed"
    >
      <div>
        <p>当前的用户：{{ userInfo.username }}</p>
        <p>当前的角色：{{ userInfo.role_name }}</p>
        <p>
          分配新角色：
          <el-select v-model="selectedRoleID" placeholder="请选择">
            <el-option
              v-for="item in rolesList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo"> 确 定 </el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    //   自定义用户表单数据验证规则(邮箱，电话号码)
    // 邮箱
    var cheackEmial = (rule, value, callback) => {
      // 邮箱正则
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return callback()
      }
      callback(new Error('请输入合法的邮箱'))
    }
    // 电话号码
    var cheackMobile = (rule, value, callback) => {
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return callback()
      }
      callback(new Error('请输入正确的电话'))
    }
    return {
      // 使用get传递参数，用于获取用户列表的参数对象
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 单签每页显示多少条
        pagesize: 5,
      },
      //   用于获取用户列表和总数据条数
      userlist: [],
      total: 0,
      //   定义添加用户对话框显示和隐藏
      addDialogVisible: false,
      //   添加用户表单的数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      //   添加——用户表单数据验证规则
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名长度在3~10个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '用户名长度在6~15个字符',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          //   指定自定义的规则
          { validator: cheackEmial, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入电话号码', trigger: 'blur' },
          //   指定自定义的规则
          { validator: cheackMobile, trigger: 'blur' },
        ],
      },
      //   控制修改用户对话框是否显示
      editDialogVisible: false,
      //   获取修改用户列表的数据
      editFrom: {},
      //   修改——用户表单数据验证规则
      editFromRules: {
        email: [
          { required: true, message: '请输入用户邮箱', trigger: 'blur' },
          //   指定自定义的规则
          { validator: cheackEmial, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '请输入用户电话号码', trigger: 'blur' },
          //   指定自定义的规则
          { validator: cheackMobile, trigger: 'blur' },
        ],
      },
      // 控制分配角色对话框显示和隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 所有角色列表
      rolesList: [],
      // 下拉框选中角色的id
      selectedRoleID: '',
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    //获取用户列表数据
    async getUserList() {
      const { data: result } = await this.$http.get('users', {
        params: this.queryInfo,
      })
      if (result.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = result.data.users
      this.total = result.data.total
      console.log(this.userlist)
    },
    // 监听用户显示个数的事件
    handleSizeChange(newSize) {
      //   console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变的事件
    handleCurrentChange(newPage) {
      //   console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关状态的改变
    async userStateChanged(userinfo) {
      //   console.log(userinfo)
      const { data: result } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (result.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听用户添加的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 点击确定，添加用户，对表单进行预校验
    addUser() {
      //点击确定按钮，添加新用户
      //调用validate进行表单验证
      this.$refs.addFormRef.validate(async (valid) => {
        // console.log(valid)
        if (!valid) return
        // 发起添加用户的网络请求
        const { data: result } = await this.$http.post('users', this.addForm)
        if (result.meta.status !== 201) {
          this.$message.error('创建用户失败')
        }
        this.$message.success('添加用户成功')
        // 隐藏添加用户对话框
        this.addDialogVisible = false
        // 重新获取表单
        this.getUserList()
      })
    },
    // 点击修改，展示编辑用户对话框
    async showEditDialog(id) {
      const { data: result } = await this.$http.get('users/' + id)
      if (result.meta.status !== 200) {
        return this.$message.error('查询用户列表失败')
      }
      this.editFrom = result.data
      this.editDialogVisible = true
    },
    // 监听——修改用户的关闭事件
    editDialogClosed() {
      this.$refs.editFromRef.resetFields()
    },
    // 修改——修改用户信息并提交,进行预校验
    editUserInfo() {
      this.$refs.editFromRef.validate(async (valid) => {
        // console.log(valid)
        if (!valid) return
        // 通过了，发起修改用户请求
        const { data: result } = await this.$http.put(
          'users/' + this.editFrom.id,
          {
            email: this.editFrom.email,
            mobile: this.editFrom.mobile,
          }
        )
        if (result.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户信息成功')
      })
    },
    // 根据ID，点击删除，弹出对话款
    async removeUserByid(id) {
      //   console.log(id)
      const confirmResult = await this.$confirm(
        '此操作将永久删除该用户, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => {
        return err
      })
      //    console.log(confirmResult)
      //   若用户确认删除，返回为字符串confirm
      //   若用户取消删除，返回为字符串cancel
      if (confirmResult !== 'confirm') {
        return this.$message.info('取消删除')
      }
      const { data: result } = await this.$http.delete('users/' + id)
      if (result.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    // 点击分配权限，显示对话框
    async setRole(userInfo) {
      this.userInfo = userInfo
      // 获取所有角色的列表
      const { data: result } = await this.$http.get('roles')
      if (result.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = result.data
      this.setRoleDialogVisible = true
    },
    // 点击分配角色的对话框确认按钮
    async saveRoleInfo() {
      if (!this.selectedRoleID) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: result } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectedRoleID,
        }
      )
      if (result.meta.status !== 200) {
        return this.$message.error('更新角色失败')
      }
      this.$message.success('更新角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 关闭分配角色的对话框
    setRoleDialogColsed() {
      // 清空已选角色
      this.selectedRoleID = ''
      this.userInfo = {}
    },
  },
}
</script>

<style lang="less" scoped>
</style>